Polyurethane (liaparo, sealants, likhomaretsi)
Mongobo oa tsamaiso ea PU o itšoara ka isocyanate, ho sa tsotellehe hore na o na le karolo e le 'ngoe kapa lihlahisoa tse peli tsa polyurethane, tse hlahisang amine le carbon dioxide, amine e tsoela pele ho itšoara ka isocyanate, e le hore tšebeliso ea eona e lokolle khase ea carbon dioxide ka nako e le 'ngoe, etsa li-bubble holim'a filimi ea pente, e lebisang ho senyeha kapa esita le ts'ebetso ea ho hlōleha ha filimi ea pente.
2% ~ 5% ea sieve ea molek'hule (phofo) tsamaisong e lekane ho tlosa mongobo o setseng tsamaisong ea PU, empa qetellong e itšetlehile ka mongobo o tsamaisong.
Sekoaelo se thibelang ho senya
Ka epoxy zinc-rich primer, palo e fokolang ea metsi e tla hlahisa karabelo e kholo ka phofo ea zinki, e hlahise hydrogen, e eketsa khatello ka har'a moqomo, e khutsufatse bophelo ba tšebeletso ea primer, e leng se fellang ka ho tiea, ho apara ho hanyetsa le ho thatafala. ea filimi ea ho roala.Sieve ea molek'hule (phofo) e le desiccant ea ho monya metsi, e leng mokhoa oa 'mele ka ho feletseng, o tla felisa metsi le ntle le ho itšoara ka substrate.Kahoo sieve ea limolek'hule e bolokehile ebile e loketse sistimi e thibelang ho senya.
Ho roala ka tšepe ea tšepe
Lits'oants'o tse ts'oanang li ka hlaha ka har'a litlolo tsa tšepe tsa phofo, joalo ka liphahlong tsa phofo tsa aluminium.
Lihlahisoa tse amanang:JZ-AZ Sieve ea molek'hule